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    • 6. 发明授权
    • Pneumatic tire having directional tread pattern
    • 具有定向胎面花纹的气动轮胎
    • US07849895B2
    • 2010-12-14
    • US11597742
    • 2005-05-27
    • Takayuki Fukunaga
    • Takayuki Fukunaga
    • B60C11/11B60C11/12B60C11/13
    • B60C11/1369B60C11/0302B60C11/0309B60C11/125B60C11/13B60C2011/0369B60C2011/0374Y10S152/03
    • The present invention provides a pneumatic tire which can obtain a high wet drainage performance, roadholding ability, and wear-resistant property without sacrificing other capabilities A directional pattern is formed by a circumferential wide major groove, a first narrow circumferential minor groove, a second narrow circumferential minor groove, a first transverse groove, a second transverse groove, and a third transverse groove. The circumferential wide major groove is provided in a center region in a tire width direction of a tread. The first narrow circumferential minor groove is arranged on the outside in a tire axis direction of the circumferential wide major groove. The second narrow circumferential minor groove is arranged on the outside in the tire axis direction of the first narrow circumferential minor groove. The first transverse groove is extended from a tread end and coupled to the circumferential wide major groove. The second transverse groove is arranged between the first transverse grooves, and the second transverse groove is extended from the tread end and terminated while not coupled to the circumferential wide major groove. The third transverse groove is arranged between the first transverse groove and the second transverse groove, and the third transverse groove is extended from the tread end and terminated between the first narrow circumferential minor groove and the second narrow circumferential minor groove.
    • 本发明提供一种充气轮胎,其能够在不牺牲其他能力的情况下获得较高的湿排水性能,道路保持能力和耐磨性能。由圆周宽的大槽,第一窄圆周小槽,第二窄槽形成方向图 圆周小槽,第一横向槽,第二横向槽和第三横向槽。 圆周宽的大槽设置在胎面的轮胎宽度方向的中心区域。 第一窄圆周小槽在周向宽大的主槽的轮胎轴线方向上配置在外侧。 第二窄圆周小槽在第一窄周向小槽的轮胎轴线方向上配置在外侧。 第一横向槽从胎面端延伸并且连接到周向宽的主槽。 所述第二横向槽布置在所述第一横向槽之间,并且所述第二横向槽从所述胎面端延伸并且终止,而不联接到所述周向宽的主槽。 第三横向槽布置在第一横向槽和第二横向槽之间,并且第三横向槽从胎面端延伸并且终止于第一窄圆周小槽和第二窄周向小槽之间。
    • 8. 发明授权
    • Pneumatic tire including three circumferential grooves
    • 气动轮胎包括三个周向槽
    • US06595255B1
    • 2003-07-22
    • US09684832
    • 2000-10-10
    • Takayuki FukunagaJun MatsuzakiMakoto Ishiyama
    • Takayuki FukunagaJun MatsuzakiMakoto Ishiyama
    • B60C1111
    • B60C11/0304B60C11/0306B60C11/033B60C11/11B60C2011/0374
    • In a pneumatic tire of the present invention, a pair of circumferential main grooves with a tire equatorial plane interposed therebetween, and another pair of circumferential main grooves at a tire axial direction outer side and inner side of the former pair of circumferential main grooves, are provided in a central area of a tread. A groove width center line of the circumferential main grooves at the tire axial direction outermost side and innermost side is disposed at a position 30% to 40% of a ground contact half width distanced from the tire equatorial plane. Further, outboard side slanted longitudinal main grooves, and slanted lateral main grooves having ends which open into at least one of the circumferential main grooves and other ends which open into contact ground end in the vehicle width direction, are disposed on the tread. Accordingly, irregular wear of land portions can be suppressed, controlling stability can be improved, and water at the ground contact surface can be efficiently drained from the ground contact surface with less drag from the water, even if the tread width of the tire is wide. In short, a pneumatic tire is provided in which high wet condition drainage performance, controlling stability and tire wear resistance can be altogether improved.
    • 在本发明的充气轮胎中,具有轮胎赤道面的一对周向主槽和前一对周向主槽的轮胎轴向外侧和内侧的另一对周向主槽是 设置在胎面的中心区域。 在轮胎轴向最外侧和最内侧的周向主槽的槽宽中心线配置在距离轮胎赤道面的距离的接地半体宽度的30%〜40%的位置。 此外,外侧倾斜的纵向主槽和沿着车宽方向开放到接触端的其他端部中的至少一个开口的端部的倾斜侧向主槽设置在胎面上。 因此,能够抑制陆部的不规则磨损,能够提高控制稳定性,即使轮胎的胎面宽度宽,也能够更有效地从地面接触面排出具有较少的水的阻力的水。 。 简而言之,提供了一种充气轮胎,其中可以完全改善高湿条件排水性能,控制稳定性和轮胎耐磨性。